docs: def get_top_artists(self, limit=None, cacheable=True):
          """Returns the most played artists as a sequence of TopItem objects."""
  
          params = {}
          if limit:
              params["limit"] = limit
  
          doc = _Request(self, "chart.getTopArtists", params).execute(cacheable)
  
          return _extract_top_artists(doc, self)